A. Barreto

collaborators

3 papers

math.GR2025

Weakly $G$ -slim complexes and the non-positive immersion property for generalized Wirtinger presentations

Agustín Nicolás Barreto, Elias Gabriel Minian

We investigate weakly $G$ -slim complexes, a more flexible variant of Helfer and Wise's slim complexes, which can be defined on any regular $G$ -covering. We prove that if a $2$ -comp…

math.GR2023

Local indicability of groups with homology circle presentations

Agustín Nicolás Barreto, Elias Gabriel Minian

We investigate conditions that guarantee local indicability of groups that admit presentations with the homology of a circle, generalizing a result of J. Howie for two-relator pres…

math.CO2023

Smallest posets with given cyclic automorphism group

Jonathan Ariel Barmak, Agustín Nicolás Barreto

For each $n \geq 1$ we determine the minimum number of points in a poset with cyclic automorphism group of order $n$ .

Weakly G-slim complexes and the non-positive immersion property for generalized Wirtinger presentations

Local indicability of groups with homology circle presentations

Smallest posets with given cyclic automorphism group

Weakly $G$ -slim complexes and the non-positive immersion property for generalized Wirtinger presentations